How to Choose Between SUS304 and SUS201 Grades

Choose SUS304 When:

Food Contact/Hygiene: Water bottles, food containers, high-end kitchenware, utensils.

Corrosion is a Risk: Exposure to moisture, weak acids, seawater, or chemicals (better acid/alkali resistance).

Durability Needed: Better toughness, less scratching, long-term value.

Application: Medical equipment, outdoor fixtures, premium items.

Choose SUS201 When:

Budget is Primary: Significantly cheaper due to lower nickel content.

Dry, Indoor Use: Door knobs, decorative trims, low-moisture indoor applications.

Hardness is Okay: Good for rigidity, but less corrosion-resistant and can be brittle.

Application: Lower-end household items, some jigs/fixtures.

Quick Comparison Table

Feature	SUS304	SUS201
Corrosion Resistance	Excellent (Higher Cr/Ni)	Moderate (Lower Ni, High Mn)
Cost	Higher	Lower (Cost-Effective)
Best For	Food, wet areas, high corrosion	Dry, indoor, budget-focused
Rust/Stain	Highly resistant (matte finish)	More prone to rust (bright finish)